"A masterly assessment of the way the idea of quanta of radiation became part of 20th-century physics. . . . The book not only deals with a topic of importance and interest to all scientists, but is also a polished literary work, described (accurately) by one of its original reviewers as a scientific detective story."-John Gribbin, New Scientist "Every scientist should have this book."-Paul Davies, New ScientistKuhn, Thomas S. is the author of 'Black-Body Theory and the Quantum Discontinuity, 1894-1912' with ISBN 9780195023831 and ISBN 0195023838.